<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script src="./vue3.js"></script>
    <!-- 使用v-for指令实现书签列表 -->
     <div id="app">
        <h2>书签列表</h2>
        <ul>
            <li v-for="book in books" :key="book.id">
                {{book.title}}-{{book.author}}
            </li>
        </ul>
        <p><button @click="addBook">添加书籍</button>
        <button @click="deleteBook">删除书籍</button>
        <button @click="findBook">查找书籍</button>
    </p>
     </div>
     <script>
        const comApp =Vue.createApp({
            data(){
                return{
                    books:[
                        {id:1,title:"红楼梦",author:"曹雪芹"},
                         {id:2,title:"西游记",author:"吴承恩"},
                          {id:3,title:"三国演义",author:"罗贯中"},
                           {id:4,title:"水浒传",author:"施耐庵"},
                    ]
                }
            },
            methods:{
                addBook(){
                    this.books.push({
                      id:5,
                      title:"史记",
                      author:"司马迁",  
                    });
                },
                deleteBook(){
                    if(this.books.length>0){
                        this.books.splice(this.books.length-1,1);
                    }else{
                        alert("书籍列表为空");
                    }
                },
                findBook(){
                    let result=this.books.filter(book=>book.id==1);
                    this.books=result.slice();
                }
            }
        }).mount("#app");
     </script>
</body>
</html>